استعرض حسب المؤلف
| أسماء المؤلفون |
|---|
| Obun, Obun [1] |
| Obun, Obun C. [1] |
| Oesterhelweg, Lars [1] |
| Oghenemavwe, Loveday E. [1] |
| Ojo, Samuel A. [1] |
| Okubike, Emeka [1] |
| Okubike, Emeka A. [2] |
| Olabiyi, Olaleye A. [1] |
| Omaira, Bassem Hayef [1] |
| Omar Alshiekh Alassamm [1] |
| Omar Saleh Abu Baker [1] |
| Omar Toumi Shaibani and others [1] |
| Omar, Ammirah [1] |
| Onen, Onenson [1] |
| Oraiby, Magbool E. [1] |
| oraiby, Magbool E. [1] |
| Orupabo, Clinton D. [1] |
| Osawa, Motoki [1] |
| Osman Abuzaid Osmans [1] |
| Osman Mohamed Nour - Yasser Al-Mubarak [1] |